Version 4
SHEET 1 880 680
WIRE 208 0 64 0
WIRE 208 16 208 0
WIRE 160 80 144 80
WIRE 208 128 208 112
WIRE 64 224 64 0
WIRE 144 224 144 80
WIRE 208 224 208 208
WIRE 208 224 144 224
WIRE 256 224 208 224
WIRE 144 240 144 224
WIRE 208 240 208 224
WIRE 64 320 64 304
WIRE 144 320 144 304
WIRE 208 320 208 304
FLAG 208 320 0
FLAG 64 320 0
FLAG 256 224 out
FLAG 144 320 0
SYMBOL njf 160 16 R0
SYMATTR InstName J1
SYMATTR Value BF256A
SYMBOL res 192 112 R0
SYMATTR InstName R1
SYMATTR Value 100k
SYMBOL cap 192 240 R0
SYMATTR InstName C1
SYMATTR Value 220µ
SYMBOL voltage 64 208 R0
WINDOW 3 -8 57 Left 2
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR Value 12
SYMATTR InstName V1
SYMBOL zener 160 304 R180
WINDOW 0 24 64 Left 2
WINDOW 3 -31 -38 Left 2
SYMATTR InstName D1
SYMATTR Value PH_BZX384-B9V1
TEXT 120 -32 Left 2 !.tran 150 startup